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Finding the Fourth Proportional to 304,658.68, 420,428.64 and 170,522.68

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Solution

The fourth proportional to 304,658.68, 420,428.64 and 170,522.68 is: 235,321.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,658.68 : 420,428.64 = 170,522.68 : x
  2. Step 2: Convert to fraction form
    304,658.68/420,428.64 = 170,522.68/x
  3. Step 3: Cross multiply
    304,658.68x = 420,428.64 × 170,522.68
  4. Step 4: Simplify right side
    304,658.68x = 71,692,618,441.56
  5. Step 5: Solve for x
    x = 71,692,618,441.56/304,658.68
  6. Step 6: Final answer
    x = 235,321.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.